Finding the Fourth Proportional to 1,855.40, 2,782.82 and 700.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,855.40 : 2,782.82 = 700.88 : x
2. Step 2: Convert to fraction form
   1,855.40/2,782.82 = 700.88/x
3. Step 3: Cross multiply
   1,855.40x = 2,782.82 × 700.88
4. Step 4: Simplify right side
   1,855.40x = 1,950,410.72
5. Step 5: Solve for x
   x = 1,950,410.72/1,855.40
6. Step 6: Final answer
   x = 1,051.21